Abstract: A device for detecting when a driven apparatus has frozen and/or its prime mover coupling mechanism is slipping. The rotational speed of a voltage generating alternator which is also driven by the prime mover is detected and a corresponding speed signal is compared to a reference speed signal. The reference speed signal corresponds to a speed slightly lower than the idling speed of the prime mover. When the detected speed signal is lower than the reference speed signal, slippage in the prime mover coupling mechanism is presumed and a slippage signal is provided. The slippage signal is used to control the coupling mechanism to disengage the apparatus from the prime mover to prevent damage from occurring.

Abstract: The inventive control system introduces the current (.DELTA.I) and voltage (.DELTA.C) deviations simultaneously with the injection set point (C) to define a new injection set point (C') that is utilized in conjunction with the measurement of diesel engine speed (V.sub.rD) to adjust the injection and with the measurement of the injection flow rate C.sub.r to adjust the generator excitation current.

Abstract: In a diesel-electric locomotive, the power demand of electrically driven auxiliary equipment is automatically increased in response to the temperature of the diesel engine falling to an undesirably low level so as to load the engine when idling and thereby cause it to produce extra heat which prevents abnormal wear and excessive fuel consumption.

Abstract: The propulsion control system of a diesel-electric locomotive includes means responsive to the rotational speed and the gross horsepower of a locomotive engine for controlling the rate at which traction load is added to the engine, when more load is called for, so that the loading rate will increase (between predetermined minimum and maximum limits) as the product of speed and horsepower increases. The loading rate is also increased in response to the ratio of combustion air to diesel fuel increasing above a predetermined no-smoke threshold.

Abstract: A longitudinal double-axle drive for an electric, track-bound, self-propelled vehicle is disclosed in which the electric propulsion motor is disposed longitudinally between two driving axles of the vehicle. The motor drives both driving axles via a respective angle transmission. In order to provide flexiblity for operating under different conditions, the electric propulsion motor is a double motor with two electrically independent rotors of equal length and a common stator comprised of two separate stator lamination stacks and a continuous stator winding. The side of each rotor facing its associated transmission is supported by an overhung arrangement from the transmission housing. Thereby, the two driving axles can rotate at different speeds without compulsion forces being generated.

Abstract: A system is disclosed for using internally generated electricity as the power to OPERATE an electrolysis cell for the production of hydrogen gas. This hydrogen gas would be stored under pressure and used on demand as a fuel supplement as for hill ascension by a diesel locomotive.

Abstract: An alternator, including a rotor unit, a housing and stator unit rotatably mounted to and supported by the rotor unit, includes apparatus for mounting the alternator to the end of a rotating axle of a railroad vehicle.

Abstract: An energy recovery system for a diesel electric locomotive is disclosed. The energy recovery system captures and stores the waste heat generated by the diesel engine of the diesel electric locomotive for use at a remote location at a later time. The energy recovery system also converts the electricity generated by the diesel electric locomotive during dynamic braking into heat, and captures and stores this heat for use at a remote location at a later time.

Abstract: An engine-driven dual winding separately excited alternator supplies electric power to a parallel array of d-c traction motors via a power rectifier assembly comprising three legs of serially interconnected diodes. The alternator has a first set of 3-phase windings respectively connected to the three rectifier legs at points between first and second diodes thereof and another set of duplicate windings respectively connected to the corresponding legs at points between third and fourth diodes thereof. First and second switching means are used to interconnect the respective junctures of the second and third diodes of all three rectifier legs, and in response to transition command signals these switching means are selectively closed (or opened) in sequence to change the connection of the alternator windings from parallel to series (or vice versa). Stabilizing means associated with the excitation system of the alternator is temporarily disabled during the transition interval.

Abstract: An analog signal representation of the ground speed of a prime mover driven vehicle is modified by the vehicle drive train ratio factor to produce an analog signal representation of the theoretical speed of rotation of the prime mover rotating element based upon vehicle ground speed and another analog signal representation of the actual speed of rotation of the prime mover rotating element based upon selected prime mover operating parameters is produced. A variable gain amplifier circuit converts the theoretical speed of rotation analog signal representation into a system output calibrated analog signal representation of the actual speed of rotation of the prime mover rotating element based upon vehicle ground speed by incrementally adjusting the potential level of the theoretical speed of rotation analog signal representation in a direction toward that of the prime mover operating parameter based actual speed of rotation signal representation.

Abstract: A drive apparatus for a vehicle mounted generator is provided wherein such vehicle has a driver shaft and a driver sheave detachably fixed thereto with the drive apparatus comprising an adjustable pivot support supporting the generator on the vehicle, a driven sheave detachably fixed to the rotor of such generator, at least one belt operatively connected between the driver sheave and the driven sheave, and a device yieldingly moving the generator about the pivot support to thereby move the driven sheave away from the driver sheave and place a substantially constant yielding tension on the belt to assure that the driven sheave and generator are driven in an optimum manner.